{"title":"灵感源自喇叭护套的轻质复合材料具有更强的抗冲击性","authors":"","doi":"10.1016/j.coco.2024.102050","DOIUrl":null,"url":null,"abstract":"<div><p>The natural <em>Caprinae</em> horn sheaths possess excellent mechanical properties due to the synergistic effects of the porous and corrugated lamellar structure. However, research on bioinspired designs based on this structure remains absent. In this work, we attempted to integrate hollow glass microspheres modified by silane coupling agents into <em>A. pernyi</em> silk fabric, and finally fabricate a horn sheath-inspired composite using the vacuum-assisted resin transfer molding. The impact strength of the horn sheath-inspired composite reaches up to 150 kJ m<sup>-2</sup> with a low density of 1290 kg m<sup>-</sup>³. Fracture morphology analysis and finite element simulation confirmed the toughening mechanisms, including crack deflection and interfacial bonding due to the synergistic effects of the porous structure and the corrugated silk fabrics. This study provides a bioinspired strategy to lightweight and tough composites, with significant potential in impact-critical applications.</p></div>","PeriodicalId":10533,"journal":{"name":"Composites Communications","volume":null,"pages":null},"PeriodicalIF":6.5000,"publicationDate":"2024-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Horn sheath-inspired lightweight composites with enhanced impact resistance\",\"authors\":\"\",\"doi\":\"10.1016/j.coco.2024.102050\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>The natural <em>Caprinae</em> horn sheaths possess excellent mechanical properties due to the synergistic effects of the porous and corrugated lamellar structure. However, research on bioinspired designs based on this structure remains absent. In this work, we attempted to integrate hollow glass microspheres modified by silane coupling agents into <em>A. pernyi</em> silk fabric, and finally fabricate a horn sheath-inspired composite using the vacuum-assisted resin transfer molding. The impact strength of the horn sheath-inspired composite reaches up to 150 kJ m<sup>-2</sup> with a low density of 1290 kg m<sup>-</sup>³. Fracture morphology analysis and finite element simulation confirmed the toughening mechanisms, including crack deflection and interfacial bonding due to the synergistic effects of the porous structure and the corrugated silk fabrics. This study provides a bioinspired strategy to lightweight and tough composites, with significant potential in impact-critical applications.</p></div>\",\"PeriodicalId\":10533,\"journal\":{\"name\":\"Composites Communications\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":6.5000,\"publicationDate\":\"2024-08-22\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Composites Communications\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S2452213924002419\",\"RegionNum\":2,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"MATERIALS SCIENCE, COMPOSITES\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Composites Communications","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2452213924002419","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MATERIALS SCIENCE, COMPOSITES","Score":null,"Total":0}
引用次数: 0
摘要
由于多孔结构和波纹状薄片结构的协同作用，天然毛角鞘具有极佳的机械性能。然而，基于这种结构的生物启发设计研究仍然缺乏。在这项工作中，我们尝试将经硅烷偶联剂改性的空心玻璃微球与蚁蚕丝织物相结合，并最终利用真空辅助树脂传递模塑法制造出一种受角鞘启发的复合材料。角鞘启发复合材料的冲击强度高达 150 kJ m-2，密度低至 1290 kg m-³。断裂形态分析和有限元模拟证实了增韧机制，包括多孔结构和波纹丝织物协同作用下的裂纹偏转和界面粘合。这项研究为轻质韧性复合材料提供了一种生物启发策略，在冲击关键应用领域具有巨大潜力。
Horn sheath-inspired lightweight composites with enhanced impact resistance
The natural Caprinae horn sheaths possess excellent mechanical properties due to the synergistic effects of the porous and corrugated lamellar structure. However, research on bioinspired designs based on this structure remains absent. In this work, we attempted to integrate hollow glass microspheres modified by silane coupling agents into A. pernyi silk fabric, and finally fabricate a horn sheath-inspired composite using the vacuum-assisted resin transfer molding. The impact strength of the horn sheath-inspired composite reaches up to 150 kJ m-2 with a low density of 1290 kg m-³. Fracture morphology analysis and finite element simulation confirmed the toughening mechanisms, including crack deflection and interfacial bonding due to the synergistic effects of the porous structure and the corrugated silk fabrics. This study provides a bioinspired strategy to lightweight and tough composites, with significant potential in impact-critical applications.
期刊介绍：
Composites Communications (Compos. Commun.) is a peer-reviewed journal publishing short communications and letters on the latest advances in composites science and technology. With a rapid review and publication process, its goal is to disseminate new knowledge promptly within the composites community. The journal welcomes manuscripts presenting creative concepts and new findings in design, state-of-the-art approaches in processing, synthesis, characterization, and mechanics modeling. In addition to traditional fiber-/particulate-reinforced engineering composites, it encourages submissions on composites with exceptional physical, mechanical, and fracture properties, as well as those with unique functions and significant application potential. This includes biomimetic and bio-inspired composites for biomedical applications, functional nano-composites for thermal management and energy applications, and composites designed for extreme service environments.
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